[Bug 1169386] Re: [keymap] Toshiba satellite A660: backlight key does not work

Mouhanad Alkallas mouhanad12 at hotmail.com
Tue May 21 18:21:27 UTC 2013


I did as you said- Also noticed you are the other of the file :). Note :
in this time frame i updated to ubuntu 13.10

Here is my result.

user at usrer-Satellite-A660:~$ /lib/udev/findkeyboards
AT keyboard: input/event3
Unknown type: input/event8
Unknown type: input/mouse1
--------Then I wrote down what happens with all 15 Fn fuctions----------------------
user at usrer-Satellite-A660:~$ sudo /lib/udev/keymap -i input/event3
Fn-Mute on/off -> works (does not show on terminal)
Fn-Lock -> works (does not show on terminal)
Fn-power option -> works (does not show on terminal) opens up power statistics
Fn-sleep -> works (does not show on terminal)
Fn-hibernate -> works (does not show on terminal)
Fn-change display (extended, duplicate) -> works (does not show on terminal) cycle through display options
Fn-brightness down -> works (does not show on terminal)
Fn-bightness up -> works (does not show on terminal)
Note: To enable brightness on nvidia 'Option         "RegistryDwords" "EnableBrightnessControl=1"' was added in xorg.conf
Fn-wifi on/off -> works (does not show on terminal)
Fn-touch pad on/off -> Does not work (does not show on terminal), however button above touchpad does work not the Fn. 
Fn-page zoom out-> Does not work (does not show on terminal)
Fn-page zoom in-> Does not work (does not show on terminal)
Fn-volume down-> Does work (does show on terminal)
scan code: 0xAE   key code: volumedown
Fn-volume up-> Does work (does show on terminal)
scan code: 0xB0   key code: volumeup
Fn-keyboard backlight on/off -> Does not work (does not show on terminal)

Note: when I do press Fn+z (keyboard backlight) I get a ubuntu notification "notification-keyboard-brightness-high" on the top right hand of the screen. 
----------------------------------

http://i.imgur.com/l54s5CP.jpg - Next i tried the keys labelled 3 in
this image

Options bar:
Toshiba eco- Nothing happens (outputs on terminal)
got scan code event 0x8D without a key code event
got scan code event 0x8D without a key code event

Wifi on/off- Does toggle wifi (outputs on terminal)
got scan code event 0x8D without a key code event
got scan code event 0x8D without a key code event

Toshiba software- Nothing happens (outputs on terminal)
got scan code event 0x8D without a key code event
got scan code event 0x8D without a key code event

pause/play-Does toggle play (outputs on terminal)
scan code: 0xA2   key code: playpause
got scan code event 0x8D without a key code event
got scan code event 0x8D without a key code event

mute- Does toggle mute (outputs on terminal)
got scan code event 0x8D without a key code event
got scan code event 0x8D without a key code event
scan code: 0xA0   key code: mute

volume down- Does work (outputs on terminal)
got scan code event 0x8D without a key code event
got scan code event 0x8D without a key code event
scan code: 0xAE   key code: volumedown

volume up-Does work (outputs on terminal)
got scan code event 0x8D without a key code event
got scan code event 0x8D without a key code event
scan code: 0xB0   key code: volumeup

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https://bugs.launchpad.net/bugs/1169386

Title:
  [keymap] Toshiba satellite A660: backlight key does not work

Status in “systemd” package in Ubuntu:
  Incomplete

Bug description:
  Toshiba satellite A660 backlight just never worked on ubuntu.

  Here is an outline of some of the LEDS in a toshiba

  http://i.imgur.com/l54s5CP.jpg

  When i press Fn+Z the ubuntu keyboard LED notification shows up,
  however nothing changes.

  so i navigated to

  /sys/devices/pci0000:00/0000:00:1c.4/0000:16:00.0/firmware_node/subsystem/devices/TOS1900:00/leds/toshiba::illumination/device/leds/toshiba::illumination

  found files

  brightness device max_brightness power subsystem trigger uevent

  when i changed the value in brightness from 0 to 1

  LED 1, 2, and 3 in the above picture turns on, and led 1 turns off
  when touch bad is off.

  However there is no keyboard backlight.upon boot the backboard
  backlight works while posting and shutdown when grub loads. When i
  disable acpi the keyboard backlight works however ill lose other
  functionalities like brightness.

  Any way to fix it?

  There is also another directory.

  /sys/devices/pci0000:00/0000:00:1c.4/0000:16:00.0/firmware_node/subsystem/devices/TOS1900:00/leds/toshiba::illumination/device/leds/toshiba::illumination/subsystem/mmc0::

  with files brightness device max_brightness power subsystem trigger uevent
  nothing happens when brightness value changes.


  LSB Version:	core-2.0-amd64:core-2.0-noarch:core-3.0-amd64:core-3.0-noarch:core-3.1-amd64:core-3.1-noarch:core-3.2-amd64:core-3.2-noarch:core-4.0-amd64:core-4.0-noarch
  Distributor ID:	Ubuntu
  Description:	Ubuntu Raring Ringtail (development branch)
  Release:	13.04
  Codename:	raring
  Linux mouhanad-Satellite-A660 3.8.0-18-generic #28-Ubuntu SMP Thu Apr 11 19:38:55 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

  #Problem also exists in older version of ubuntu, new kernel in 13.04
  does not solve the problems.

   xev shows a key being pressed and being mapped to kbdbacklight. A a
  notification that keyboard is being turned on appears when Fn+Z is
  pressed. Also unlike other manufactures toshiba doesn't have
  brightness on backlit keyboards, its either on or off or a timer.

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